From patchwork Fri Feb 7 15:51:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Kuoppala X-Patchwork-Id: 11370709 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B7CF292A for ; Fri, 7 Feb 2020 15:51:52 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A0DDD21741 for ; Fri, 7 Feb 2020 15:51:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A0DDD21741 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 119336FD11; Fri, 7 Feb 2020 15:51:52 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id ED06A6FD09 for ; Fri, 7 Feb 2020 15:51:50 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 Feb 2020 07:51:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,413,1574150400"; d="scan'208";a="220831303" Received: from rosetta.fi.intel.com ([10.237.72.194]) by orsmga007.jf.intel.com with ESMTP; 07 Feb 2020 07:51:49 -0800 Received: by rosetta.fi.intel.com (Postfix, from userid 1000) id 41DBD840D6B; Fri, 7 Feb 2020 17:51:39 +0200 (EET) From: Mika Kuoppala To: intel-gfx@lists.freedesktop.org Date: Fri, 7 Feb 2020 17:51:37 +0200 Message-Id: <20200207155138.30978-1-mika.kuoppala@linux.intel.com> X-Mailer: git-send-email 2.17.1 Subject: [Intel-gfx] [PATCH 1/2] drm/i915: Disable tesselation clock gating on tgl A0 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Disable TEDOP clock gating flow by programming 0x20A0[19] = 1 References: HSDES#1407928979 Signed-off-by: Mika Kuoppala Reviewed-by: Chris Wilson --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 5 +++++ drivers/gpu/drm/i915/i915_reg.h | 1 + 2 files changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 61106129287f..4bbea781c142 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1352,6 +1352,11 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) wa_write_or(wal, GEN7_SARCHKMD, GEN7_DISABLE_SAMPLER_PREFETCH); + + /* Wa_1407928979:tgl */ + wa_write_or(wal, + GEN7_FF_THREAD_MODE, + GEN12_FF_TESSELATION_DOP_GATE_DISABLE); } if (IS_GEN(i915, 11)) { diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index dc206723f25e..b62029a10ed6 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3165,6 +3165,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define GEN7_FF_THREAD_MODE _MMIO(0x20a0) #define GEN7_FF_SCHED_MASK 0x0077070 #define GEN8_FF_DS_REF_CNT_FFME (1 << 19) +#define GEN12_FF_TESSELATION_DOP_GATE_DISABLE BIT(19) #define GEN7_FF_TS_SCHED_HS1 (0x5 << 16) #define GEN7_FF_TS_SCHED_HS0 (0x3 << 16) #define GEN7_FF_TS_SCHED_LOAD_BALANCE (0x1 << 16)